Welcome to the brand new Official Sinn Forum. With its foundations in Frankfurt Am Main, Germany in 1961, Sinn over the years has "quietly" grown to one of the most collected German brands.

Sinn is owned and managed by Lothar Schmidt, formerly production head with IWC and A. Lange & Sohne. Mr. Schmidt is an engineer, and over the years has led the Sinn team in creating a number of patented technologies that genuinely benefit the watch. Sinn pioneered the use of silicon oil in watches to achieve unlimited depth, in addition to the DIAPAL technology that allows the movement's most important bearings to do without lubrication.

Sinn's Tegiment processing hardens cases to 1200 HV, resulting in a watch case that is virtually scratchproof and four times the hardness of stainless steel. And their use of argon gas with copper sulphate capsules creates a humidity free environment for the movement and dial.

Sinn's not only about technology - they make great looking watches whose designs hold up over time. Sinn's many fans around the world have supported this brand since its inception, and now as a leader in high functionality watches featuring new and exclusive technologies, Sinn has an official forum on TimeZone.

Please do not discuss dealers, net prices paid (discounting) or valuations, and do not post links to websites where watches or related goods are offered for sale. Do not post direct or indirect for sale, want to buy or want to trade messages.